Hurricane Matthew in Haiti city.

Haiti's southern city of Jeremie suffered "complete destruction" when it was hit by Hurricane Matthew, the CARE relief agency said on Thursday.

"It's complete destruction in Jeremie," CARE Haiti country director Jean-Michel Vigreux tweeted. "About 80 percent of the buildings are gone. All phone lines and electricity are gone. Access is completely cut off, and everyone is running out of food and money."